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Is this the only fertilizer u using? If so, where is the calcium? Also u need more N and thats a hell of a lot of Molybdenum.
Tomato plants need lots of Ca. I always match N to Ca when growing tomatoes. If I was u I would get some Cal-Mg and add it to ur nutes.
Hope this helps
L8
MJ

Nitrogen problems are a common occurrence in hydroponics gardens. When you see yellowing leaves (most often the larger and older leaves first), with the yellow starting at the tip and gradually causing the entire leaf to go yellow, you’ve most likely got a nitrogen shortage. For sure, the language of plants is tricky, and you have to pay careful attention to accurately determine what they’re saying. For example, if you see yellowing of only the youngest leaves (new growth), that’s not a nitrogen problem- it’s a sulfur problem, even though yellowing is the primary symptom.

And are those ingredient details put up on the nutrient label? because if you are staying in the states it could get bit tricky. sometimes we encounter different problems with plants and we dont get to figure out the exact reason but for the most number of times, its the nutrient ingredients. All hydroponic companies dont give out complete details about their nutrients ingredients. their labels are manipulated and it because of the state laws regulation. there is an interesting story here non reuters google "advanced-nutrients-hydroponics-experts-reveal-government-regulation-of-hydroponics-industry"

Some insects cause small, yellow spots on leaves.Over watering also leads to mold and mildew development, which causes yellow spots on the plant and leaves.Also a lack of sunlight causes yellowing.Get more info on plant care.